I recently decided to leave my job due to health reasons. Management sent out an email informing staff. A current employee screenshot the email and sent it to someone who no longer works for the company. I know this because, that person text me a copy of the screenshot and asked me "what happened?" Is this a privacy breach?
It's certainly a data protection issue if the revealed the fact that you left due to poor health without asking you permission. They should not have even told other people at your company, other than those who need to know for some reason.
You should email the company HR department and explain that you are not happy with this information being shared within the company, let alone outside it.
Your question is somewhat vague in the details of what "private" information was distributed, however in the vast majority of organisations any information that contains more than one piece of uniquely identifiable information (i.e. name, email address, photo etc.) is considered sensitive and confidential information, and should not be distributed over a medium as insecure as email.
Your reasons for leaving the organisation are your reasons alone. Other employees will be aware of your departure, but shouldn't know why unless you choose to publicise it. There are two points to your scenario which you can choose to listen to at your own discretion:
- The reason for your departure should not be spread over emails, though word of mouth often leaks this information unless the manager you told retains a professional level of discretion. If you wanted this information to remain private, there's a problem.
- The person outside of the organisation should not receive this information, irrespective of the sensitivity of the information.
Organisational information is private for a reason, not only is it personal to you, but it's also a potential security exploit. Someone with information on your departure outside of the organisation can use this to either socially engineer others, or directly contact you in an attempt to receive information.